Edging-machine.



G. VV. BLACKBURN.

BDGING MACHNB.

APPLIQATION FILED AUG. 4, 1913.

Patented June 30, 1914.

wijffie/556,5' M 675W# G. W. BLACKBURN.

EDGING MACHINE.

APPLICATION MLBD AUG. 4, 1913.

Patented June 30, 1914.

2 SHEETS-SHEET 2.

GUY W. BLACKBURN, OF ELGIN, ILLINOIS.

EDG'ING-MACI-IINE.

Specification of Letters Patent.

Patented J une 30, 1914..

Original application filed March 24, 1911, Serial No. 616,555. Divided and this application filed August 4,

To all whom t may concern:

Be it known that I, GUY W. BLACKBURN, a citizen of the United States, residing at Elgin, in the county of Kane and State of Illinois, have invented a certain new and useful Improvement in Edging-Machines, of which the following is a specification, and is based upon the subject-matter contained in and divided out of my copending application, Serial No. 616,555, iiled March 24, 1911, for tube-forming machines.

My invention relates to improvements in edging machines such as may be used in connection with tube forming machines and the like for the purpose of bending, upsetting or edging flat tube or can blanks as they proceed toward the tube forming machine. The machine, of course, may be used for other purposes than tube forming but is particularly well adapted for this use.

It is illustrated diagrammatically in one form in the accompanying drawings, wherein Figure l is a plan view; Fig. 2, a section along line 2-2 of Fig. l; Fig. 3, a section along line 8 3 of Fig. 1; Figs. 4c and 5 are perspective details of the guides shown in Fig. 1; Fig. 6 is a detail plan view of the lower crimping die shown in Fig. 8; Fig. 7 a section along line 7 7 of Fig. 1; and F ig. 8, a detail in part section of the pusher rod and operating mechanism showing a part of the can forming machinery to which my device is adapted to be applied. Fig. 9 is a section along the line 9-9 of Fig. 6; Fig. 10 is a detail of the crimping roller; Fig. 1l is a section along the line 11-11 of Fig. 10; Fig. 12 is a section along the line 12-12 of Fig. 10.

Like parts are indicated by like references in all of the gures.

The main frame A which is mounted upon the legs A1 carries the fixed parallel gage bars A2 between which are located the adjustable parallel guides A5, At and A5 which are all positioned with respect to the gage bars A2 and have the transverse slots A1 to engage the holding bolts A5. rl`he guide bars A3 have along their inner edges the bearing surfaces A5 and guide surfaces A10, at right angles one to the other, a portion of the upper surface of each guide bar A5 being tapered off at A11 in opposition to the upwardly inclined end A12 of each guide strip A15 which is mounted upon each bench Serial No. 782,790.

A14 on the guide bar A4 to form the guiding groove A15 in the edge of the guide strip A4. rihe end of the guide strip A5 which is adjacent to the guide strip A4 is provided with the angular' groove A10 in opposition to the end of the slot A15. The crimping plates A11 are spaced by blocks A5 with respect to the guide bars A2 and provided on their adjacent sides with the curved and tapered guiding slots A18 which extend to the truncated conical crimping rolls r 10 and are provided beyond said rolls with the angular guide slots A20 in line with the guide grooves A15 formed by the strips A13 in the edge of the guide bars A5. The spring actuated latch A21 is interposed between the crimping plate A11 and the guide bar A5 and projects outwardly into the line of the grooves A15.

The guide rail B which is supported at one endin the bracket B1 on the table A and at the other end in the boss B2 on the end frame B5 is located above and between the guides A5, A4 and A5 and carries, by means of the sliding bearings B1, the carriage B5 which in turn carries the flat die B5 provided with the angular edge B1 in oppositionto one of the truncated conical rollers A10. The tracks B8 on the bottom of the frame support the carriage B0 which carries the die B10 in opposition to the die B5 and is provided with the angular edge B11 in opposition to the other truncated conical roller A15. The rail B12 is mounted in the brackets B15 on one side of the frame A and has slidably mounted thereon the sleeve B which is rigidly connected to the carriage B5 by the arm B15 and to the carriage B5 by the arm B10. The carriage B0 carries the outwardly and upwardly extending spring arm B11, which terminates in the hook B15, extending upwardly into the plane of the guide surfaces A0 and the die B10 carries at one end the spring hooks B10 extending upwardly into the plane of the guide grooves A15 and at the other end the spring actuated latch-lugs B20.

For the sake of showing how my device is used in connection with one form of machine, l have illustrated some of the parts operating in connection with a cam. They are as follows: The split collar not here shown is in slidable engagement with a Vmandrel for the purpose of feeding the can.

This collar is rigidly attached to the slidably mounted shaft E15 which slides in the ico sleeve E14 in the frame B3. This shaft is also slidable in the sleeve E1G on the bracket E17. The spring E19 tends to yieldingly draw the shaft E13 toward the left-hand end of the machine as shown in the Vdrawing and resists the longitudinal movement of the shaft in response to the movement of the sleeve E3 which is caused by the lug E21 being pressed upwardly by a spring as shown to engage the sleeve E16 when the sleeve E1(3 has passed to the left beyond the lug E21. rlhus the forward movement of the carriage B5 to the right as it feeds the blank through the edging mechanism also feeds the can forward into the machine so as to leave room for the blank to be fed.

1t will be evident that while l have shown in my drawings an operative device, still V'many changes might be made both in size,

Vcates the drive carriage.

shape and arrangement of parts, without departing from the spirit of my invention, and I wish, therefore, that my drawings be regarded as in a sense diagrammatic.

yThe use and operation of my invention are as follows: A belt, not shown, drives from any suitable source of power the driving pulley on the driving shaft, thus operating the machine. The fiat metal blanks which are to be made into tubes are fed into the machine by placing themV upon the bearing surfaces between the guide surfaces of the parallel guides'on the main frame. The reciprocation of the rod driven by any suitable source of power, since the connecting rod is pivoted to the sleeve B11', which sleeve is mounted on the drive carriage, recipro- Each outward movement of the carriage brings the spring hooks carried thereby into engagement with the rearward edge of one of the blanks. The inward movement ofthe carriage draws this y blank forward beneath the guide strips into the guide slots. The next outward movement of the carriage brings the dies on the carriage into opposition with either side of the blank, the return of the blank being prevented by the slot or groove in the edge of the guide. lhen the carriage starts its forward movement, the spring hooks on the lower die engage the rearward edge of the blank and carry it forward between the two crimping plates where its edges are slightly curledV or bent to and beyond the crimping rolls which crimp or bend the edges against the angular side extension of the die. 0n vthe next outward movement of the carriage vthe blank is caught by the latch on the farther side of the crimping plate and drawn out from between the dies. The next forward movement of the carriage causes the spring actuated latch lugs to engage the rearmost edge of the blank and carry itV forward into the machine to a position in opposition to the mandrel. The bracket E17 is supported on the carriage B5.

G12 is a connecting rod leading from any suitable source of power which reciprocates the yoke B15 to drive the carriage. With the parts in the position shown in llig. 8, the sleeve E1G moves forward carrying with it the rod E13 and approaching the sleeve E14. As this sleeve is approached the latch E21 will enter the sleeve E14 and finally be by its contact with that sleeve thrown out of contact with the sleeve EN. The rod E13 will then be drawn through the sleeveE16 by the tension of the spring E19, assuming subsequently the position shown `in Fig. 3. rlhe return reciprocation of the sleeve E1G will cause it to slide along the rod E13 until it passes over the latch E21, subsequently assuming a position similar to that shown in Fig. 8. Y

l claim :V

l. A blank engaging machine comprising a track, blank edging dies mounted for reciprocation along said track, spring fingers projecting from said diesand adapted to reciprocate therewith to feed blanks along said track, blank engaging projections car` ried by said dies to engage and feed blanks along said track, and blank bending guides along said track in opposition tov said dies.

2. A blank edging machine'comprising a track, blank edging dies mounted for reciprocation along said track, spring iingers projecting from said dies and adapted to reciprocate therewith to feed blanks along said track, blank Vengaging projections carried by said dies to engage and feed blanks along said track, and blank bending guides along said trackin opposition to said dies, said dies having one on either side anangular outwardly extending edge in opposition one to each of said blank bending guides.

3'. A blank edging machine comprising a track, blank edging dies mounted for reciprocation along said track, spring fingers projecting from said dies and adapted to reciprocate therewith to feed blanks alongV said track, blank engaging projections carried by said dies to engage and feed blanks Vso along said track, blank bending guides along l said track in opposition to said dies, Vand separate bending rollers one on either side of said dies and in line with said blank bending guides. j

4. A blank edging machine comprising a track, blank edging dies mounted for reciprocation along said track, spring lingers projecting from said dies and adapted to reciprocate therewith to feed blanks along said track, blank engaging projections carried by said dies to engage and feed blanks along said track, blank bending guides along said track in opposition to said dies, said dies having one on either side an angular outwardly extending edge in opposition one to each of said blank bending guides, and truncated conical bending rollers one on of said dies and in line with said blank bending guides', said guides, track members 15 and rollers being adjustable in opposed groups to vary the distance between said groups.

In testimony whereof, I aHX my signature in the presence of two witnesses this 30th 20 day of July 1913.

GUY W. BLACKBURN.

Witnesses:

FRANK E. SHOPEN, HARRY C. DANIELS.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, D. C. 

